[填空题]
An oxygen molecule co3tr9 *jculj b1nsists of two oxygen atoms w9 ua 8osmxbqv9ei4 6jc1o( k4hhose total mass is $5.3 \times10^{ -26}$ kg and whose moment of inertia about an axis perpendicular to the line joining the two atoms, midway between them, is $ 1.9\times10^{-46 }$ $kg \cdot m^2$ From these data, estimate the effective distance between the atoms. $\times10^{-10 }$ m